Page 69 - New Medley 2_Semester 2
P. 69
The top face has 4 edges. The bottom face also has 4 edges. There
are also 4 vertical edges. Number of edges is 4 + 4 + 4 = 12. We can
say a cube has 12 edges. All edges of a cube are equal in length.
B C
D
A
E H
F G
The top face has 4 corners. (A, B, C and D) The bottom face also has
4 corners. (E, F, G and H) Number of CORNERS is 4 + 4 = 8. We can
say a cube has 8 corners. 3 edges meet at each corner.
2
1
3
4
A cube has 6 faces, 12 edges and 8 corners. All faces of a cube are
equal squares. All edges of a cube are equal in length. 3 edges meet
at each corner.
EXERCISE 1.1
A. Shade the top and bottom faces of the following cubes. (One
is done for you.)
B. Mark the front and back walls of the following cubes. (One is
done for you).
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